Computational biologist at Argonne National Laboratory and a senior fellow at the Computation Institute at the University of Chicago. Associate division Director of the Institute of Genomics and Systems Biology. Founding member of the Earthmicrobiome project (EMP). He is a member of the Genomics Standards Consortium (GSC). Author of MG-RAST (http://metagenomics.anl.gov), an open metagenomics platform providing quantitative insights into microbial populations based on sequence data.